Digital Commons Network^™

Influence Of Dietary Crude Protein Concentration And Source On Potential Ammonia Emissions From Beef Cattle Manure, N. A. Cole, R. N. Clark, R. W. Todd, C. R. Richardson, A. Gueye, L. W. Greene, K. Mcbride

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Emissions of ammonia, as well as other gases and particulates, to the atmosphere are a growing concern of livestock producers, the general public, and regulators. The concentration and ruminal degradability of CP in beef cattle diets may affect urinary and fecal excretion of N and thus may affect ammonia emissions from beef cattle feed yards. To determine the effects of dietary CP concentration and degradability on potential ammonia emissions, 54 steers were randomly assigned to nine dietary treatments in a 3 × 3 factorial arrangement of treatments. Treatments consisted of three dietary CP concentrations (11.5, 13, and 14.5%) and three …

Involvement Of Acetosyringone In Plant–Pathogen Recognition, C. Jacyn Baker, Norton M. Mock, Bruce D. Whitaker, Daniel P. Roberts, Clifford P. Rice, Kenneth L. Deahl, Andrey A. Aver'yanov

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

In this study, acetosyringone was identified as one of the major extracellular phenolics in tobacco suspension cells and was shown to have bioactive properties that influence early events in plant–bacterial pathogenesis. In our model system, tobacco cell suspensions treated with bacterial isolate Pseudomonas syringae WT (HR+) undergo a resistant interaction characterized by a burst in oxygen uptake several hours after inoculation. When the extracellular concentration of acetosyringone in tobacco cell suspensions was supplemented with exogenous acetosyringone, the burst in oxygen uptake occurred as much as 1.5 h earlier. The exogenous acetosyringone had no effect on tobacco suspensions undergoing susceptible interactions …

Induction Of Redox Sensitive Extracellular Phenolics During Plant–Bacterial Interactions, C. Jacyn Baker, Bruce D. Whitaker, Daniel P. Roberts, Norton M. Mock, Clifford P. Rice, Kenneth L. Deahl, Andrey A. Aver'yanov

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

This study focuses on the transient and complex nature of phenolics that accumulate in the extracellular environment of plant suspension cells during the first few hours of the interaction between these plant cells and bacterial pathogens. Using suspension cells of Nicotiana tabacum we identified four acetophenones and four hydroxycinnamic acid amides that accumulate in this extracellular environment. Treatment of the suspension cells with isolates of the plant pathogen Pseudomonas syringae or heat-killed bacteria increased elicitation of extracellular phenolics and changed the composition of the compounds that accumulated. These phenolics were sensitive to oxidative stress; when suspension cells were treated with …

Lamb Production Of Dorper, Katahdin, And St. Croix Bred In Summer, Winter, Or Spring In The Southeastern United States, J. M. Burke

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Ewe production traits and ability to breed out of season were compared for the Dorper (DO), Katahdin (KA), and St. Croix (SC) breeds between 2000 and 2005. Sheep were managed on grass pasture and were supplemented with corn/soybean meal and free-choice, trace-mineral mix. Ewes were exposed to rams of their respective breeds in late summer (August/September), winter (December), or spring (April/ May) for 30-day breeding periods. Lambs were weighed at birth and 60 days of age. Pregnancy and lambing rates and litter birth weight were greater for all breeds bred in winter and lowest in spring. Pregnancy losses were greater …

Growth Performance Of Barbados Blackbelly, Katahdin And St. Croix Hair Sheep Lambs Fed Pasture- Or Hay-Based Diets, S. Wildeus, K. E. Turner, J. R. Collins

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Two experiments evaluated growth of mixed-sex Barbados Blackbelly, Katahdin, and St. Croix hair sheep lambs raised on pasture or hay-based diets with moderate levels of energy supplementation. In Experiment 1, 36 ewe and wether lambs were allocated to a pasture or pen feeding group in May. Pasture animals rotationally grazed tall fescue pasture, while pen animals were offered chopped alfalfa hay, and both groups were supplemented with corn/soybean meal at 0.75% of body weight. In Experiment 2, 72 lambs were allocated to pen and pasture in April, and provided either a low or high crude protein concentration corn/soybean meal supplement …

Composition Of Irrigation Water Salinity Affects Growth Characteristics And Uptake Of Selenium And Salt Ions By Soybean, D. Wang, C. M. Grieve, D. L. Suarez

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

A greenhouse study was conducted to determine the effects of irrigation waters differing in salt composition on growth characteristics, salt ion and selenium (Se) accumulation, and distribution in plant components of the soybean (Glycine max L. Merr.) cultivar “Manokin.” Plants were grown in sand cultures and irrigated with isoosmotic solutions containing (1) Cl⁻ as the dominant anion, or (2) a mixture of salts containing equal molar amounts of SO_^2-4  and Cl⁻. Six treatments of each salinity type were imposed. Electrical conductivities of the irrigation waters ranged from 2.1 to 13.0 dSm⁻¹. Selenium …

Species Diversity And Functional Composition Of Pastures That Vary In Landscape Position And Grazing Management, John A. Guretzky, Kenneth J. Moore, E. Charles Brummer, C. Lee Burras

Department of Agronomy and Horticulture: Faculty Publications

The productivity of grasslands depends in part on their diversity of species and functional composition. Our objective was to examine the effects of three landscape positions (summit, backslope, and toe-slope) and three stocking systems (continuous, rotational, and non-grazed) on species diversity and percentage of cover of grass, legume, and weed species functional types in southeastern Iowa pastures.Data were collected in 0.2-m² plots randomly distributed throughout each of four replicate pastures in spring and summer 2000 and 2001. Backslope landscape positions within pastures managed with either continuous or rotational stocking contained the greatest overall diversity of species. Across years, overall …

Lucerne - Is It For Me? - Workshop Development Guide For Facilitators, Richard O'Donnell

Agriculture reports

This workshop has been developed as part of the GRDC/NDSP-funded ?A Million Hectares for the Future? Project with support and input from key personnel from the Department of Agriculture, Western Australian (DAWA). Thank you also, to the farmers who participated in the pilot workshops, providing valuable feedback on structure and content.

Development Of A Process Of Addition Of Tricalcium Phosphate From Burnt Phosphate Rock In Feed For Animal Nutrition, Luis Fernando Nogales Grágeda

Theses and Dissertations

This study took place in Bolivia with the purpose of using thermally treated Capinota phosphate rock as a phosphorous supplement in balanced feed diets. The objective was to produce a natural phosphate substance that would be more easily accessible to the local population than commercial feed supplements. An additional objective of this study was to increase the availability of the low-fluoride phosphorous. The biological assays indicated that the diet with the added burned phosphoric rock produced similar yields to those using a commercial feed supplement (dicalcium phosphate). This indicates that the locally manufactured product, by partial acidification, can compete with …

Seasonal Acceptance Of Fourwing Saltbush By Sheep When Crested Wheatgrass Is The Alternative, Val J. Anderson, R. D. Horrocks, Christine W. Royer, Stephen B. Monsen

Faculty Publications

Many sagebrush-grass ranges have been seeded to crested wheatgrass [Agropyron desertorum (Fischer ex Link) Shultes]. These ranges are generally nutritionally inadequate for sheep (Ovis aries L.), except for short grazing periods in the spring and fall. To increase production and diversity, particularly crude protein for late-season grazing, fourwing saltbush [Atriplex canescens (Pursch.) Nutt.] was planted in an existing stand of crested wheatgrass. Quantification of sheep forage preferences on these improved ranges aids in determining the length of the grazing season and the extent to which shrubs provide the supplemental nutrition required. This seasonal grazing study was conducted on a characteristic …

Center For Grassland Studies Newsletter, Winter 2004, Volume 10, No. 1

Center for Grassland Studies: Newsletters

Matching Beef Cattle Genetics to Feed Resources by Jim Gosey, Department of Animal Science, UNL

Ecological Monitoring to Assist Producers with Grassland Production Forecasts by George Green, School of Natural Resources, UNL

Nebraska Ranch Practicum Enters Sixth Year by Jerry Volesky, Don Adams, Richard Clark, Dillon Feuz, Patrick Reece, Brent Plugge, Bud Stolzenburg and Troy Walz, UNL

Bull Riders for Biodiversity? – And Other Heresies for the Northern Great Plains by Tyler Sutton, for The Conservation Alliance of the Great Plains

2004 Nebraska Grazing Conference to be Aug. 10-11

The Nebraska Turfgrass Conference: 42 Years of Educating Nebraska Turfgrass Managers …

Agronomic Responses Of Corn Hybrids From Different Eras To Deficit And Adequate Levels Of Water And Nitrogen, Patrick M. O'Neill, J.F. Shanahan, James S. Schepers, Bob Caldwell

Department of Agronomy and Horticulture: Faculty Publications

Maintaining current high yields of corn (Zea mays L.) grown in the USA poses an environmental threat due to continued overuse of water and N inputs. To reduce overreliance on inputs, future corn breeding efforts should focus on improving tolerance of corn to water and N stresses, utilizing appropriate tolerance mechanisms. The objective of this study was to identify appropriate mechanisms by characterizing agronomic responses of 12 hybrids from three different eras (‘B73 x Mo17’ from 1970s and three early 1990s and eight late 1990s Pioneer brand hybrids) to varying water and N supply. This was done by growing …

Nebline, November/December 2004

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Local Efforts to Promote Good Health
What Parents Can Do
Tax Planning Update for 2004
Don’t Forget to Winterize Your Underground Sprinkler System
Management Pays Better Than Labor
Management = Planning for the Future
Helping Trees Through Winter
Sources of Man-Made Chemicals in Drinking Water
How to Hire an Arborist
Tips on Storing Firewood
Tips on Turkey Preparation
WINTER FRUIT GLAZE Recipe
How to Cook a Turkey the Day Before Serving It
GREEN ONION AND CORN BREAD STUFFING Recipe
Simple Tip to Avoid Scratches When Storing Nonstick Skillets
Cooking Tools Class Oct. 26
President’s Notes — Janet’s Jargon
Household Hints: …

Strategies For Reducing Stored Feed Requirements, Don Ball

Kentucky Grazing Conference

A basic, desirable goal for virtually any livestock producer is to minimize stored feed requirements. It is less expensive to have livestock harvest forage for themselves by grazing than to harvest it for them; therefore, the greater the extent to which pasture can be used to provide nutrition, the more profitable a livestock operation will generally be. Thus, it is worthwhile to consider all options that might be available for reducing stored feed needs.

Center For Grassland Studies Newsletter, Fall 2004, Volume 10, No. 4

Center for Grassland Studies: Newsletters

Nebraska's Natural Legacy Project by Kristal Stoner, Nebraska Game and Parks Commission

Earth, Wind, and Fire in the Flint Hills by David Hartnett, Konza Prairie Biological Station, Kansas State University

Owens Highlights UNL Grazing Activities at Grazing Conference

Professional Golf Management Program Tees Off with 31 Students

CGS Director Massengale Inducted into CSREES Hall of Fame

Forage News [2004-10], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• 5^TH Kentucky Grazing Conference Almost Here
• Kentucky Agricultural Cash Receipts
• Stockpiled Tall Fescue Quality
• How Much Is a Big Bale Worth?
• New Clover Shows Excellent Gains
• Forage Production and Forage Mixture Complexity
• Storage Losses and Nutritive Value of Warm-Season Forages Conserved as Baleage
• Utilizing Poultry Litter in a Fertility Program for Orchardgrass Hayfields
• Upcoming Events

Nebline, October 2004

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Discover 4-H, Discover You!
Five Ways to Join 4-H!
Nebraska Wild Fruit and Nut Jam Oct. 2
Ten Rules for Planting Trees
Garden Guide: Things to do this month
Direct Seeding Hardwood Tree Species
Storing Sweet Potatoes
Watch for Deer When Driving, Especially at Dawn and Dusk
Head Lice Resources You Can Trust
Nebraska Water Facts
The Hazards of Biting Fleas
Upcoming Household Hazardous Waste Collections
The Hazards of Biting Fleas
Prepare Bins and Equipment Before Harvest
“Grapes” is October Rural Living Clinic
Add Lime This Fall for Next Spring’s Alfalfa
Finding Forgotten Food
National Popcorn Poppin’ Month
Camp Abbott: …

Folate Biofortification In Tomatoes By Engineering The Pteridine Branch Of Folate Synthesis, Rocio Diaz De La Garza, Eoin P. Quinlivan, Sebastian M. J. Klaus, Gilles J. C. Basset, Jesse F. Gregory Iii, Andrew D. Hanson

Center for Plant Science Innovation: Faculty Publications

Plants are the main source of folate in human diets, but many fruits, tubers, and seeds are poor in this vitamin, and folate deficiency is a worldwide problem. Plants synthesize folate from pteridine, p-aminobenzoate (PABA), and glutamate moieties. Pteridine synthesis capacity is known to drop in ripening tomato fruit; therefore, we countered this decline by fruit-specific overexpression of GTP cyclohydrolase I, the first enzyme of pteridine synthesis. We used a synthetic gene based on mammalian GTP cyclohydrolase I, because this enzyme is predicted to escape feedback control in planta. This engineering maneuver raised fruit pteridine content by 3- …

Nebline, September 2004

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

What if You Could Access Extension’s Educational Resources at the Push of a Button?
Sorting Through Internet Clutter
What Users Are Saying
Garden Guide: Things to do this month
Good, Low-Maintenance Trees to Plant
Herbal Festival
Aster Yellows on Purple Coneflower
Ladybugs, Ladybugs, Fly Away Home! Please!
Composting Indoors with Worms
Upcoming Household Hazardous Waste Collections
Packed Lunch Pizzazz!
Sports Mix Recipe
Adding A Rainbow To Your Diet
President’s Notes — Janet’s Jargon
Household Hints: Chill Out with an Efficient Fridge
FCE News & Events
Stress Affects Adolescents Too
Plan Now for Holiday Spending
Values
St. Johnswort is Increasing in …

Forage News [2004-09], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Forage Spokesman Nominations
• Kentucky Grazing Conference
• Forages at KCA
• Switchgrass and Horses
• Cutting Alfalfa in Autumn Increases Annual Yield, Doesn’t Hurt Stands, but Is Unlikely to Increase Profits
• Nitrogen Rate and Source Effects on the Yield and Nutritive Value of Stockpiled Tall Fescue
• Stewardship for the 21^ST Century: A Report on America’s Forage and Resources and Needs - Executive Summary
• Upcoming Events

Nebline, August 2004

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

People’s Choice 4-H Awards
“My Pond Won’t Stay Full!”
Terminating Farm Leases
Put Farm Leases in Writing for Legal Protection
“Ponds” is August Rural Living Clinic
Treating Bee Stings
How Effective are DEET Repellents?
Tree Squirrels - Tricksters and Troublemakers
Found an Underground Yellow Jacket Nest? Proceed with Care!
Summer Fruits and Veggies: Q & A
“Healthy One Dish Dinners for 1, 2, 4 or More”
President’s Notes — Janet’s Jargon
Household Hints: Lower Your Lighting Costs
FCE News & Events
More Tools for Student Success
Helping a Child Ease Back Into School
Getting Ready for the New School Year …

The Effects Of Elevated Co2 And Environmental Variation On Plant Phenotype, Herbivore Performance, And Evolutionary Potential In A Brassicacae Model System, John Michael Landosky

Dissertations

No abstract provided.

B. R. Wells Rice Research Studies 2003, R. J. Norman, J.-F. Meullenet, K. A.K. Moldenhauer

Arkansas Agricultural Experiment Station Research Series

Arkansas is the leading rice-producing state in the U.S., representing just over 48% of the total U.S. production and 48.5% of the total acres planted to rice. Rice cultural practices vary across the state and across the U.S. However, due to changing political, environmental, and economic times, the practices are dynamic. This survey was initiated in 2002 to monitor how the changing times reflect the changes in the way Arkansas rice producers approach their livelihood. The survey was conducted by polling county extension agents in each of the counties in Arkansas where rice is produced. Questions included topics such as …

Agribusiness Sheep Updates - 2004 Part 2, Anyou Liu, Clinton Revell, Phil Nichols, Brad Nutt, Darryl Clements, Lucy Anderton, Stephen Gherardi, Chris Oldham, Paul Sanford, John Gladman, G. E. Donald, A. Edirisinghe, D. A. Henry, S. P. Gittins, R. C. G. Smith, Roy Butler, Kelly Pearce, David Masters, David Pethick, Andrew Thompson, Ken Hart, Johan Greeff, Beth Paganoni, Rachel Kirby, Matt Ryan, Kira Butler, Roger Heggarty, David Hopkins, Samantha Giles, Tom Plaisted, Mark Ferguson, Darren Gordon, John Young, Sandra Brown, Ian Mcfarland, John Archer, John Milton, Rob Davidson, Graeme Martin, David Lindsay, Johnathan England, Mandy Curnow, Karina P. Wood, Ashley K. White, B. Lloyd Davies, Paul M. Carberry, Mark Hyder, Mike Freer, Andrew Van Burgel, Kazue Tanaka, Andrew Peterson, Roger Wiese, Gonzalo Mata, Evan Burt, Amanda Miller, Anne Bennett, Felicity Flugge, Amir Abadi, Perry Dolling, Dean Thomas, Mike Ewing, David Lindsay, Emma Kopke, E. A. Dowling, E. K. Crossley, Brien (Ben) E. Norton, John Karlsson, Geoff Pollott, Diana Fedorenko, Darryl Clements, Robert Beard, Brown Besier, Una Ryan, Caroline Bath

Sheep Updates

Precision Pastures

Using Species Diversity to Improve Pasture Performance Anyou Liu and Clinton Revell, Department of Agriculture, Western Australia

New Annual Pasture Legumes for Sheep Graziers Phil Nichols, Angelo Loi, Brad Nutt and Darryl McClements Department of Agriculture Western Australia

Pastures from Space – Can Satellite Estimates of Pasture Growth Rate be used to Increase Farm Profit? Lucy Anderton, Stephen Gherardi and Chris Oldham Department of Agriculture Western Australia

Summer-active Perennial Grasses for Profitable Sheep Production Paul Sanford and John Gladman, Department of Agriculture, Western Australia

Pastures From Space – Validation Of Predictions Of Pasture Growth Rates DONALD, G.E^{.A …}

Center For Grassland Studies Newsletter, Summer 2004, Volume 10, No. 3

Center for Grassland Studies: Newsletters

WILD Nebraska Grasslands by Bill Vodehnal, Nebraska Game and Parks Commission

High School Students Improve Their Game While Having Fun at UNL Golf Camp

Multiple Dimensions of a Strong Professional Golf Management Program by Charles Francis, Department of Agronomy and Horticulture, UNL

CGS Advisory Council Tours Northeast Nebraska

Groundwater Nitrates Being Used to Fertilize Intensive Grazed Pasture

Grazing and Grassland Management Is Theme of Wildlife Society Meeting

Regional Researchers Collaborate to Improve Grazing Systems

UNL Researchers Study Seed Production of Eastern Red Cedar

Range Management Focus of Beef Basics VI

Still Time to See Exhibition – Listening to the Prairie …

Plant Disease Management, Larry A. Sagers

All Archived Publications

No abstract provided.

Forage News [2004-07], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Warren Thompson Retires From ABI
• Seeded Bermudagrass: Filling in the Summer Slump
• Bill Talley Receives AFGC Merit Award
• Kentucky Students Win First AFGC Forage Bowl
• KFGC Field Day
• Yield and Persistence of Bolting-Resistant Cultivars of Chicory in Forage Plots
• Management of Beef Cattle to Alleviate Fescue Toxicosis
• Comparison of Three Tall Fescues Containing Novel Endophytes for Stocker Cattle Weight Gain
• Persistence of HiMag Tall Fescue Inoculated with Nontoxic Endophytes
• Upcoming Events

Nebline, July 2004

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Tips, Tools and Travel-Safe Foods for Summer Food Safety
Frozen Custard Ice Cream Recipe
2004 “Great Plants” Plants of the Year
Black Spot of Rose
Garden Guide
West Nile Virus: Elderly at Risk
Using DEET Repellents Safely
Is your Acreage or Farm a Mosquito-Breeding Site?
Effect of Increasing Energy Prices on Irrigation Costs
Watch for Blister Beetles in Alfalfa
Pesticide Container Recycling
New Rules for CRP—Acres Can Be Used for Hay or Pasture
Pouring Quality Concrete
Drinking Water Bacteria
Control of Muskrat Damage in Ponds
“Private Drinking Water Systems” is July Rural Living Clinic
Cool It! Use a Refrigerator/ Freezer …

Nebline, June 2004

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Better Safe Than Sorry
Safety in the Home
Controlling Bagworms
Propagation of Shrubs from Softwood Cuttings
Garden Guide: Things to do This Month
2004 Perennial Plant of the Year
Brighten Your Outdoor Area With Hanging Baskets
President’s Notes — Janet’s Jargon
Household Hints: Water Saving Measures
More Tools for Student Success
What Has Happened to Family Time?
Respect
Effect of Increasing Energy Prices on Farming Costs
Pesticide Container Recycling
“Small Scale Animal Feeding” is June Rural Living Clinic
The Nebraska LEAD Program
Wheat Plot Tour June 10
Examine Trees For Insect, Disease Problems
Septic Tanks Must Be Pumped By Certified …

Forage News [2004-06], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• KFGC Field Day
• AFGC to Meet In Roanoke, Virginia June 12-16
• Forage Species and Spatial Effects on the Dietary Intake of Goats
• Kentucky Ranks High in Beef
• Forage-Animal Production Research Unit: Most Recent Agriculture Research Service Location
• Calibrating Seeders
• Upcoming Events